Miscarriage again?

This time last year I was expecting my first baby with the love of my life Cameron. I was 17 and 3-4 months pregnant. And being 17 and pregnant is really scary but I knew we could do it. Cameron never went to the first ultrasound appointment l, where they ask you tons of questions and do the vagina rod ultrasound. He went to the second appointment where they find the heartbeat on through your stomach, so it started off with 2 doctors ln the room trying to find the heartbeat than it became 4 girls..... and after that many people not finding the heartbeat and 15 minutes of trying I started to believe that something was really wrong. The nurse said why don’t you come with me to the room where you had your first ultrasound done. So I got cleaned up and I went with her along with Cameron and my sister. So we go in there get all set up and she puts the rod in and says she can’t find a heart beat the first thought in my head was get me the hell out of this hospital. Cameron takes off running, my sister stays in the room and comforts me. We leave to go find Cameron. He’s crying on the phone with his dad.... his dads saying I know your hurting but she is too youneed to be there for her.. I get the d&c; vaccine procedure done. A year later tomorrow here I am pregnant again... I am so scared that it is going to happen again. Trying not to get over excited about it... but at the same time I’m beyond excited ready to go out and buy baby clothes I’m ready to be a mom and start my life.... just terrified that it will happen again.